when a hand crancked meggar is used to check most three phase induction motors, how many tests r rquired? Why?
1 3357when qty of cable being purchased is not sufficient according to the standard,what should the inspector do to ensure its quality according to the standard?
1521The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?
1395Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?
1727How to find Cable size? Caterpillar generator produce (Two generators) 127*2=254 amp at 11 kv . What would be the cable size (XLPE) to supply 256 amp at 11 kv? Air or surrounding Temperature is 32 degree C. Cable will go under ground at 2.5 feet depth. Group Rating Factors is 3 cables. Clearance between cables is 7 cm. Soil Temperature (Ambient) 28o C Soil Thermal Resistivity is 1.2 K.m/W I would like to use 3 separate single core instead of using 3 core cable. Some says I should use three separate single core 120RM cables. Some says 70RM .some says 95. I m totally confused. Is there ant specific rule to determine cable size? What would be the LT cable size to flow 500 Amp current? Ifte My e mail address is ifte13@yahoo.com Anyone please send me the answer to my e mail address, i will be very glad.
1 77911. What does mean of "PS" stand for Diff. CT class? 2. What is the formula of KW for 1Phase load inturms of voltag,current & P.F.?
4 11235How can we calculate the current if we have load in KVA and if the load in KW then what formula will be use for calculating the current. please give both the formula for calculating the current.
3 8027How to convert KV into MV in a Transformer?. dont say multification of 1000.pls give practical convertion factor.
2 5093Post New Electrical Engineering Questions
i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester
1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.
How to work definite,over pluxing,revers power,OSR relay
diff b/w elcb and rccb
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?
How we calculate DC inducation moter Amp? Sir pls give me formula......
sir, iam a electrical engg graduate and i want to go in automation sector and for this i have decided to do industrial training for this,plz suggest me some good institute for the same in delhi,ncr. my degree percentage is 58%, can i get job after doing training, plz help....
Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.
what is meant by 2 within a star in a voltmeter dial?
solar inverters was not connected to the nuteral link .this nutwral possible to any other systems
what is the role and fuction of automatic transfer switch in rotary ups
Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?
What is the Current equation in series RLC circuits.
what will be the min and max voltage flow from neutral to earth?
